- Moon Sweepers mobile players reach the endgame with JOONAS, the autonomous lunar sweeper.
- Each JOONAS unit costs 20,000 currency and sweeps the moon surface in sections.
- Build a Capsule Catcher to collect full capsules and feed lunar dust into production.
- Current units are buggy: they can stop working when you move too far away.
- Treat JOONAS as endgame automation, not an early or mid-game investment.
Moon Sweepers Mobile: What JOONAS Sweepers Do
In Moon Sweepers mobile, the JOONAS is a fully autonomous automated sweeper that runs across the entire surface of the moon, collecting lunar material without any manual input. It is effectively the late-game automation layer of the game: once your operation is large enough, JOONAS units let lunar dust flow into your production chain while you focus on upgrades and expansion.
Each unit sweeps one section at a time, moving across the terrain on its own. When a JOONAS finishes filling up, it shoots out a capsule that must land in a dedicated structure — the Capsule Catcher — before the material enters your production pipeline.
Video Highlights:
- JOONAS units cost 20k each and are described as a non-essential, premium automation option
- They sweep the moon surface in sections and run fully autonomously
- A Capsule Catcher is required to receive ejected capsules and route lunar dust into production
- Units can misbehave and may stop working entirely if you travel too far away
- Multiple units can share one catcher, with capsules flying to the closest one
JOONAS units are expensive relative to what they deliver right now. Community reports and reviews indicate they are buggy in the current build, and they can quit working entirely if you get too far away. Do not sink a large share of your funds into them until you have a stable production base.
Cost, Stats, and Value Overview
Here is how JOONAS compares to the rest of your lunar economy options. The table below summarizes the key facts you need before committing currency.
| Attribute | JOONAS Automated Sweeper | Manual Sweeping | Notes |
|---|---|---|---|
| Cost | 20,000 per unit | Free | Very high upfront investment |
| Operation | Fully autonomous | Player-driven | JOONAS runs the whole moon surface |
| Coverage | One section at a time | Wherever you go | Units slowly blanket the surface |
| Output delivery | Ejects a capsule when full | Direct to inventory | Requires Capsule Catcher |
| Reliability | Buggy in current build | Reliable | May stop when player is far away |
| Best stage | Endgame | Early to mid-game | Not part of core progression yet |
Treat each JOONAS as a 20k experiment. Buy one, verify it cycles correctly with your catcher, and only then consider scaling up. The cleaned-area counter does climb quickly when several units are running, but only if they stay active.
Step-by-Step: Setting Up Your First JOONAS
Follow this workflow to get a JOONAS running and integrated into your production chain without wasting currency.
Secure Your Economy First
Make sure your manual sweeping and production chain are stable and generating surplus currency. A 20k purchase should not cripple your progress if the unit malfunctions.
Build a Capsule Catcher
Construct the Capsule Catcher before buying the sweeper. JOONAS ejects full capsules into the air, and anything that misses the catcher is wasted effort. Placement near your production chain makes routing easier.
Purchase and Deploy a JOONAS
Buy one unit for 20k and place it near the sections you want cleaned. Watch its first few cycles to confirm it sweeps, fills, and ejects correctly.
Connect to Production
Route the catcher's output into your lunar dust production stages. A well-placed catcher can feed material directly into a final-stage processor, keeping your chain running hands-free.
Monitor, Then Scale
Keep an eye on the cleaned-area counter and capsule landings. If the unit runs reliably over several cycles, add more units — they will all shoot to the closest catcher automatically.
Capsules fly to the closest Capsule Catcher. If one catcher is absorbing the bulk of the traffic, you can shut down individual sweepers to redirect their output toward a catcher on the production side.
Capsule Catcher Placement Strategies
The catcher is the real bottleneck in a JOONAS setup. These three layouts cover the most common base configurations in Moon Sweepers mobile.
Production-Side Catcher
- Placed directly beside final production stages
- Feeds lunar dust automatically into processing
- Best for bases built around a central factory
Central Catcher Hub
- Single catcher near map center
- All sweepers send capsules to the closest point
- Simple to manage, easy to monitor
Dual-Catcher Split
- One catcher for cleaning zones, one for production
- Shut down or reposition sweepers to route traffic
- Highest throughput once bugs are ironed out
| Strategy | Throughput | Cost Efficiency | Management Effort |
|---|---|---|---|
| Production-Side | ★★★★ | ★★★★★ | Low |
| Central Hub | ★★★ | ★★★★ | Low |
| Dual-Catcher Split | ★★★★★ | ★★★ | Medium |
It can take a while before you actually see a capsule land — even in long-running setups, the first delivery may surprise you. Confirm at least one successful landing before assuming your routing works.
Known Issues and How to Work Around Them
JOONAS units are impressive when they work, but the current build has real problems. Here is what to expect and how to mitigate each issue.
| Issue | Impact | Workaround |
|---|---|---|
| Distance-based shutdown | Units quit when player is far away | Stay in range or check back often |
| Erratic pathing | Sweepers wander unpredictably | Reassign or reposition near target sections |
| Review-reported failures | Units sometimes never function | Test with one unit before scaling |
| Missed capsules | Output lost without a catcher | Always build catchers before sweepers |
Multiple player reviews report that JOONAS units do not work correctly yet and are not truly part of the core game. They are a cool endgame toy when functioning — just avoid heavy investment until the developers stabilize them.
Before Investing in JOONAS:
- Stable surplus currency well above 20k
- Capsule Catcher built and tested
- Production chain running smoothly
- One test JOONAS completing full cycles
- Plan for monitoring units at range
FAQ
Q: How much does a JOONAS sweeper cost in Moon Sweepers mobile?
Each JOONAS automated sweeper costs 20,000 currency. Given its current buggy state and endgame-only usefulness, treat it as a luxury automation purchase rather than a core progression requirement.
Q: Do I need a Capsule Catcher to use JOONAS?
Yes. When a JOONAS fills up, it shoots a capsule into the air that must land in a Capsule Catcher to enter your production chain. Build the catcher first — ideally near your production stages so lunar dust flows directly into processing.
Q: Why did my JOONAS stop working?
The most commonly reported issue is that units quit working entirely when the player travels too far away. They also suffer from erratic pathing and other bugs in the current build. Stay within range and verify each unit's cycles before scaling up.
Q: Can multiple JOONAS units share one Capsule Catcher?
Yes. Capsules automatically fly to the closest catcher, so several sweepers can feed a single catcher. If traffic concentrates on one side of your base, you can shut down individual sweepers to redirect capsules toward the catcher serving production.